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Link Collection

This page is mostly for myself - a collection of links to things i found useful - things will be added over time.



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Campground Networking

I've travelled a couple years full time in an RV, working remotely. This can be a challenger, many campgrounds have poor Wi-Fi setups, and cell service is not always great (Do not plan on doing any work from the Grand Canyon National Park). Calling ahead and asking usually does not reveal accurate information, you are best off using campground reviews, search them for WIFI and read what people say.  The best network I have seen was at Eagles Landing RV Park in Holt, FL (Pan handle) http://eagleslandingrvpark.com/. Still not perfect. At poor sites, more than once did I offer my assistance in trying to configure and improve, but even the places which have no vendor maintain their system do not want any other hands on it. A couple of times I helped out anyway, default passwords on routers, so I upgraded their firmware, disabled 802.11b, and set a password so no-one else would mess with it. My RV network setup is not of a common type, you sort of have to be a bit of a network-guy to us...
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New Lines - Windows/Unix/Linux/MacOS - viM

If you deal with scripts and other text files and move between platforms you probably discovered this "issue". Only the founding developers can explain why they chose what they did - googling about will show you a couple of different explanations - whatever the reasons, here are the differences and how to convert. The formats The Characters in use (referenced in OS info below) LF Usually referred to as LF  or Line feed Ascii code decimal 10 Hex: A or 0xA Octal: 12 or O12 Typical Escaped character in many shells and languages: \n CR Usually referred to as CR or Carriage Return Ascii code decimal 13 Hex D or 0xD Typical Escaped character in many shells and languages:  \r Unix, Linux, and Modern MacOS - The POSIX standard Each Line ends with a single character:  LF Most programming languages will understand/interpret this format properly. Simple Windows programs, like the built in Notepad will not show this properly. Windows (and DOS) Each...
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Linux/Unix - Create a local Certificate Authority (CA)

I get these questions all the time - people know i have some runtime with certificates and such - one question is "Can't i just issue my own certs?" - and the answer of course is yes - but I always make sure to add that it won't be any use on a public web site since no-one will trust it. So setting up your own CA is not "generally useful", it is more if you need some specific things, like issuing certificates with a single signing source for client logins or similar. Most business will have a  couple of Windows Domain controllers, if you need to sign certs for a limited set of users, what you should do is make sure some system in your windows domain runs Certificate Services, then issue certs from there, make sure any non-domain-members has a trust for that CA. If you actually do need to set up you own CA, here is one way to do it Procedure to set up your own local CA The common name for the CA cert must NOT be the same as a domain name or anything e...
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